Why are you studying English?

When I studied English first time, it was just thing that I have to get a good grade. = The first time I studied English, it was just for me to get good grades. 
But as days go by, I felt the need of studying English more and more.
At first, I concentrated reading English papers and understanding it, but now l need speaking more.
So, I registered the = in an English institute for speaking, but I was shy that I have to talk in front of the other people.
I felt that I was behind them, I absented there a lot. But at this time when speaking is important more and more, I study hard very much. = But since speaking has become more and more important, I need to study harder.
I want to talk with foreign freely not have suppressed. = I want to talk to foreigners spontaneously.